Police will also be in touch with Australian police to find out what would be the best way of gathering evidence, Harman said. This could involve either going to Australia or collecting evidence remotely.

Saldanha, whose tragic death triggered wide public anger against the radio station involved, Sydney-based 2Day FM, was represented at the coroner's court by co-workers from the hospital.

The Australian Communications and Media Authority, the country's media watchdog, on Thursday opened a formal investigation into 2Day FM's broadcast of the prank call.